linux-kernel - Re: Problems with suspend and USB storage

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Message-ID: <20080522205902.GA3409@nostromo.devel.redhat.com>
Date:	Thu, 22 May 2008 16:59:02 -0400
From:	Bill Nottingham <notting@...hat.com>
To:	Greg KH <greg@...ah.com>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: Problems with suspend and USB storage

Greg KH (greg@...ah.com) said: 
> On Thu, May 15, 2008 at 12:33:15PM -0400, Bill Nottingham wrote:
> > 
> > I've been testing suspend/hibernate with various USB devices under
> > 2.6.25.2. Test box is a Thinkpad T60 (uhci, ehci).
> > The results are somewhat dismal.
> 
> If you look at 2.6.26-rc, there are some good changes there that should
> help things out a lot.  USB_PERSIST is much better there, but it missed
> .25 as it wasn't tested enough (although it is shipping in openSUSE
> 11.0, and seems to be working well there...)

Testing 2.6.26-rc3 + gregkh-04-usb-2.6.26-rc3.patch... things are
much better.

However, there's one thing that still fails - hibernate to a usb
device attached via a PCI Express card reader. Log is attached - 
do you need any more information? (Devices in the same card reader work
fine across suspend to RAM & resume.)

Bill

View attachment "dmesg" of type "text/plain" (29711 bytes)